Data Sheet

Interconnects—Ethernet Controller I210
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— Active state power management
• Support for PCIe v2.1 (2.5GT/s)
— Support for completion time out
— Support for additional registers in the PCIe capability structure.
3.1.1.2 Physical Interface Properties
• Point to point interconnect
— Full-duplex; no arbitration
• Signaling technology:
— Low Voltage Differential (LVD)
— Embedded clock signaling using 8b/10b encoding scheme
• Serial frequency of operation: 2.5 Gb/s.
• Interface width of x1.
• DFT and DFM support for high volume manufacturing
3.1.1.3 Advanced Extensions
PCIe defines a set of optional features to enhance platform capabilities for specific usage modes. The
I210 supports the following optional features:
• Extended error reporting - messaging support to communicate multiple types/severity of errors.
• Device serial number.
• Completion timeout control.
• TLP Processing Hints (TPH) - provides hints on a per transaction basis to facilitate optimized
processing of transactions that target memory space.
• Latency Tolerance Reporting (LTR) - messaging support to communicate service latency
requirements for memory reads and writes to the root complex.
3.1.2 General Functionality
3.1.2.1 Native/Legacy
All the I210 PCI functions are native PCIe functions.
3.1.2.2 Transactions
The I210 does not support requests as target or master.
3.1.3 Host Interface
3.1.3.1 Tag IDs
PCIe device numbers identify logical devices within the physical device (the I210 is a physical device).
The I210 implements a single logical device with one PCI function. The device number is captured from
the type 0 configuration write transaction.